Integrated Inflatable Life Preserver Garment for Aircrew

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Solution Overview

Problem

Traditional life preservers worn around the neck cause bulk and restriction to head movement, interact with aircrew helmets, reduce downward visibility, and create snagging hazards during aircraft escape or other marine applications.

Innovation Solution

A personal protection garment with an integrated inflatable chamber that provides buoyancy to support the wearer's body on water, eliminating the need for a separate lifejacket and reducing bulk and snagging hazards.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate lifejacket is worn over the protective flight garment, then buoyancy is provided to save the wearer from drowning, but bulk and restriction to head movement are caused

Engineering Contradiction:
ImprovebuoyancyVSAvoidhead movement
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent combines the protective flight garment and lifejacket into a single integrated garment. The inflatable chambers are incorporated directly into the flight garment structure, eliminating the need for a separate lifejacket. This merging maintains buoyancy functionality while removing the bulk and restriction problems caused by wearing separate layers.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a traditional life preserver is worn around the neck, then buoyancy is provided, but interaction with aircrew helmets occurs, further reducing head mobility

Engineering Contradiction:
ImprovebuoyancyVSAvoidhead mobility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The life preserver functionality is merged into the flight garment itself through integrated inflatable chambers positioned within the garment structure. This eliminates the separate neck-worn life preserver that interferes with helmet wear and head mobility, while maintaining the required buoyancy support.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If a prominent life preserver is worn over the shoulders and front chest, then buoyancy is provided, but downward visibility is reduced and snagging hazards are created

Engineering Contradiction:
ImprovebuoyancyVSAvoidsnagging hazard
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The buoyancy-providing inflatable chambers are integrated into the flight garment's existing structure on the shoulders and chest areas. This merging allows the buoyancy function to be achieved without adding prominent external bulk, thereby maintaining downward visibility and eliminating snagging hazards during aircraft escape procedures.

Inventive Principle:
Principle #5Merging (Combining)

4Reliability

If a separate protection garment and lifejacket are worn, then protection from drowning is provided, but undesirable bulk is created

Engineering Contradiction:
Improveprotection from drowningVSAvoidbulk
Core Design Contradiction:
ReliabilityVSVolume of moving object

Solution Approach 1:

The patent merges the protective flight garment and lifejacket into a single integrated ensemble. The inflatable chambers are built into the garment structure itself, eliminating the need for separate layers. This reduces the overall bulk and volume while maintaining full protection from drowning capability.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The garment provides effective buoyancy to prevent drowning while reducing bulk and improving mobility and safety for aircrew and other personnel in marine environments.

Implementation Method 1

an inflatable chamber configured to provide buoyancy to support the wearer's body on water when inflated to save the wearer from drowning

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentUS20250128799A1Life preserver
Publication Date: 2025.04.24 RFD BEAUFORT LTD
  • US20250128799A1 patent drawing
  • US20250128799A1 patent drawing
  • US20250128799A1 patent drawing

AI summary

A personal protection garment (110) configured to cover at least a part of a wearer's body in use, wherein the protection garment includes an inflatable chamber in region (119) configured to provide buoyancy to support the wearer's body on water when inflated to protect the wearer from drowning.